Improvement in harvesters



w. F. .Goonwm Harvester.

Patented March 13, 1866i).l

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NrTen STATES PATENT Ormea@ WILLIAM F. GOODWIN, lOF WASHINGTON, DISTRICTOF COLUMBIA.

IMPROVEIVI ENT IN HARVESTERS.

Specification forming part of Letters Patent No. 53,] 37, dated March1:5, 1866.

To all whom it may concern:

Be it known that I, WILLIAM F. GOODWIN,' of the city. and county ofWashington, in the District ot' Columbia, have invented a new and usefulImprovement in Harvesters; and I do hereby declare the following to be afull, clear, and exact description of the nature, construction, andoperation of the same, reference being had to the accompanying drawings,which are made a part of this specifica tion, and in which- Figure l isa plan of a portion of a harvester illustrating my invention. Fig. 2 isa Fig. 3 is a longitudinal section through one of the teeth or cuttersand its seat or casing. Fig. et is a perspective view of a toothdetached. Fig. 5 is a perspective view ofthe seat or casing for thetooth.

Similar letters of reference indicate correspending parts in the severalfigures.

This invention relates to the construction and method of operating thecutting appa ratus; andthe principal feature of theimprovement consistsin providing each tooth of the cu tting apparatus with a separate seator easin g, the entire series of which are pivoted independently to areciprocating bar placed be hind the critters. Each tooth vibrates uponits independent pivot and is susceptible of removal for repair orreplacement without disturbing the relation between the remaining teethand the bar which operates them.

By my arrangement the teeth are capable of a very rapid vibration upontheirindependent pivots, which is believed to be better adapted for thecutting ot' the grain than the ordinary reciprocating movement.

In order that others skilled in the art to which my invention appertainsmay be enabled to fully understand and use the same, I will proceed todescribe it in connection with the accompanying drawings.

In the accompanying drawings, A A may represent portions of the frame ofa harvester, and B the platform. C C represent the cutters or teeth,which are formed and applied separately or independently of each otherand vibrate between the lin gers or guards D, which are constructed andattached in any suitable manner.

Each tooth or cutter, C, may be cut out of a sheet or plate of metalwith a die, and at the'same operation a hole, o, is made in it toreceive a pivot, m, which is formed in one piece with a seat or casio g,M, which incloses or partially embraces the rear portion of the tooth.The seat M and tooth C are therefore made separately, and the tooth isset into the seat with the pivot m passing through the hole o andprojecting both above the tooth and below the seat. The upper portion ofthe pivot m is threaded to adapt the seat and tooth to be securelyclamped together by a nut, E.

It is manifest that this mode ot' connecting the two parts togetherenables the tooth to be readily detached from its seat, either forrepair or replacement, when it becomes injured or broken.

The pivot m of each tooth has its bearing in the seat which rotateswithin the front bar, B', of the platform frame, said bar thus forming asubstitute for the common linger-beam. The teeth and seats C M arecovered and re tained in place by a cap or plate, F, which, in Fig. 1,is represented as broken away to expose the devices beneath. This cap Freceives the tops of the pivots m and rests upon the guards. All theseats or easings M are pivoted to and vibrated by a reciprocating bar7M, which is jointed to a vibrating lever, C, which is pivoted to the barB2 and moved by the action of a wheel, P, upon the rollers o o, whichlare journaled upon small studs upon the opposite ends of the bar O',which is secured upon the end of the lever O at right angles thereto.Each face of the wheel P has cam-projections or scallop-grooves p, thecam-surfaces .acting upon the rollers o 0, so as to throw the end of thelever C alternately in opposite directions. The rollers o o are employedto avoid friction, and thus economize the power. Motion is transmittedfrom the axle to the wheel P through the gearing S S.

Having thus described my invention, the following is what I claim as newtherein and desire to secure by Letters Patent:

The flanged and journaled seats or casings M, provided with theprojections a n' and screw m, constituting receptacles for the teeth orcutters C, and admitting of the independent application and removal ofthe latter, as described. y

WM. F. GOODWIN.

Witnesses OorAvIUs KNIGHT, C. A. Purrrr.

